ROBERT PATTINSON: Our favorite leading ladies weren't the only ones to grab our attention on the red carpet this year. Heartthrob Robert Pattinson rocked a maroon Gucci suit for the premiere of Twilight Saga: Eclipse on June 24 in Los Angeles. It suited (pun intended) the actor perfectly, and the thin gray tie added a sexy finish.

Kristen Stewart and Robert Pattinson.The 'are they or aren't they' "Twilight" stars became even more fascinating when they were caught locking lips in Montreal in August. Will they get married? Will they even last? Will we ever stop obsessing over them? Uh, not likely.

Kristen Stewart and Robert PattinsonThey may refuse to talk about it, but 2010 seemed to confirm long-simmering suspicions that RPattz and KStew had taken their onscreen love affair offscreen, thanks to a number of high-profile sightings over the course of the year. Who could forget when they kissed at the MTV Movie Awards in June and then spent the summer shooting separate flicks, still finding time to hang out together? Pattinson visited Stewart on the set of "On the Road," and the pair flew the friendly skies together. They grabbed a meal together in L.A., which seems to be a very coupley thing to do. The two were also spotted kissing on the beach for a "Breaking Dawn" honeymoon scene.

[July] Some acting couples just have such amazing chemistry on film that fans are left wondering: Is there something really going on there? And this year, Twi-Hards finally got their answer, as “Twilight’s” number one couple, Robert Pattinson and Kristen Stewart, officially became a thing. Or as official as they could be considering neither is willing to actually discuss it. Still, the media has reported it, so it must be true — and besides, all you have to do is see them together on screen to see the truth.

L = life imitates artEver since the first Twilight film came out in 2008, hopeful fans have been speculating about the real-life sparks between onscreen lovers Kristen Stewart and Robert Pattinson. But despite playing coy about their offscreen romance, in 2010 it became harder to keep their relationship under wraps. In February, R-Pattz actually admitted they were attending the BAFTA Awards together. Then there was the biggest tip-off of all: In August, a sneaky photographer snapped the couple making out in Montreal. And in December, they were openly cuddling at a Breaking Dawn cast party. We can’t wait to see them melt the screen when Bella and Edward go on their honeymoon in next year’s Breaking Dawn: Part 1.